CVE-2026-22904 — AI Deep Analysis Summary

🚨 **Essence**: A stack buffer overflow in WAGO switches due to improper length handling of multiple cookie fields.…

🛡️ **Root Cause**: **CWE-121** (Stack-based Buffer Overflow). The flaw lies in how the device parses and processes the length of multiple cookie fields, failing to validate input size correctly.

🏭 **Affected Products**: - WAGO Industrial-Managed-Switch **0852-1322** - WAGO Industrial-Managed-Switch **0852-1328** 🇩🇪 **Vendor**: WAGO (Germany).

💀 **Attacker Capabilities**: - **Privileges**: Full system control (High Impact). - **Data**: Complete compromise of Confidentiality, Integrity, and Availability (C:H, I:H, A:H).…

🔓 **Exploitation Threshold**: **LOW**. - **Auth**: None required (PR:N). - **Complexity**: Low (AC:L). - **User Interaction**: None (UI:N). - **Network**: Network-accessible (AV:N).

📂 **Public Exploit**: **No**. The `pocs` list is empty in the provided data. No public Proof-of-Concept (PoC) or wild exploitation code is currently available.

🔍 **Self-Check**: 1. Identify if you use WAGO **0852-1322** or **0852-1328** switches. 2. Check network logs for abnormal HTTP requests with unusually large Cookie headers. 3.…

🩹 **Official Fix**: **Unknown/Not Provided**. The data does not list a specific patch version or update link. Refer to the VDE advisory (VDE-2026-004) for potential vendor updates.

🚧 **Workaround**: - **Input Filtering**: Deploy WAF or firewall rules to block HTTP requests with Cookie fields exceeding normal size limits.…

⚠️ **Urgency**: **CRITICAL**. With CVSS **9.8** (High), no auth required, and potential for RCE, this is a high-priority vulnerability. Immediate mitigation via network controls is recommended until a patch is confirmed.